koobas.hobune.stream
Sorting a List of objects with CompareTo
Hello, everyone! My issue is, when I'm trying to Sort a List of RaycastHit2D's with CompareTo method it doesn't work. Here's the code part:
RaycastHit2D[] hits = Physics2D.BoxCastAll (caststart, playersize, 0f, castdir, c5_maxrange);
List<RaycastHit2D> hitList = new List<RaycastHit2D> ();
hitList.AddRange (hits);
Debug.Log ("Objects withOUT sorting");
foreach (RaycastHit2D hit in hitList){
Debug.Log (hit.collider.name + " " + hit.collider.bounds.max.x);
}
// return;
hitList.Sort(delegate(RaycastHit2D x, RaycastHit2D y) {
return(x.collider.bounds.max.x.CompareTo(y.collider.bounds.max.x));
});
Debug.Log ("Sorted Objects");
foreach (RaycastHit2D hit in hits){
Debug.Log (hit.collider.name + " " + hit.collider.bounds.max.x);
}
And, unfortunately for me, the result before and after sorting doesn't change. The reason I need this sorting is that BoxCastAll catches upper colliders first. then the lower ones, and when I start to check members in the list in reverse order I would like to check upper collider's first. But basically, I'm trying to understand why Sort doesn't actually sort. Thank you for the answer in advance.
Update.
Tried Using.System.Linq and after some struggling it worked! But only when OrderBy to a new list, which then cannot be sorted. Here's the code in case somebody faces the same issue:
RaycastHit2D[] hits = Physics2D.BoxCastAll (caststart, playersize, 0f, castdir, c5_maxrange);
List<RaycastHit2D> hitList = hits.OrderBy(b=>b.collider.bounds.max.x).ThenBy(b=>b.collider.bounds.max.y).ToList();
Debug.Log ("Sorted Objects");
foreach (RaycastHit2D hit in hitList){
Debug.Log (hit.collider.name + " " + hit.collider.bounds.max.x);
}
return;
My mistake was simple adding RaycastHit2D[] result to a List and then applying for OrderBy method, which didn't work either.
However, I'm still wondering why Sort(CompareTo) doesn't work. I presume It is somehow connected to RaycastHit2D[] array type.
Ok now. That was a stupid mistake. After sorting I wrote to the Console "hit in hits" ins$$anonymous$$d of "hit in hitList". Sorting method works perfectly well unlike me. Well, live and learn, right? =)
